It was just last March that CBS renewed The Big Bang Theoryfor its 11th and 12th seasons — 48 episodes, in total — and many have surmised that the conclusion of Season 12 could very well be its last. Now Johnny Galecki, one of the comedy’s high-paid leads, is hinting that there might be some truth to those rumours.

“The only manner in which the cast has discussed wrapping [the series] has been that we’re all going to be very sad when that day comes,” Galecki told reporters at the TCA winter press tour on Saturday. “But I think at this point everyone’s very comfortable with 12 seasons being a good time to go home and see our families.”

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Galecki could just be talking about himself, considering he’s appearing in one episode of the Roseanne reboot this season, as well as serving as an executive producer on the new CBS sitcom Living Biblically, which debuts in February. But let’s be serious. There’s no such thing as a Big Bang without Galecki. Jim Parsons‘ Sheldon Cooper may be who you think of first, but it’s Leonard Hofstadter that acts as the glue holding it all together.

We get that Big Bang, which debuted in 2007 on CBS and CTV and is currently in its 11th season, has to end at some point, and that it’ll live on forever in syndication, but that doesn’t make its probable end any less sad. Some shows stick around way past their prime, but CBS’s crown jewel isn’t one of them, and it continues to make us laugh hysterically.

By the time it all ends, though, will we finally find out Penny’s last name? Will Raj find love? Will Stuart? Will we learn just how deep Sheldon’s drawers are to fit his colourfit T-shirt collection? Hopefully all our questions will be answered, whenever it ends.